Made of steel, 12 x 5 mm in pairs ; half red & half blue (for N & S) spray painted, with keepers.
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Half red & half blue (for N & S ) spray painted, with keepers. Made of cobalt steel 10 mm diameter available in different sizes.
Demonstration Transformer – One main coil and 2 interchangeable secondary coils, 6 and 12 volt at 2 amp.
Plotting Compass Glass for Physics Lab – Magnetic needle mounted on pivot in aluminium case with both sides glass with cross lines at 90°. (a) 20 mm (b) 25 mm (c) 50 mm.
Made of steel 12 mm diameter, in pairs, half red & half blue (for N & S), spray painted, with keepers.
There are no reviews yet.